| Value | Category | Cases | |
|---|---|---|---|
| 0-3 months ago | 4 |
6.1%
|
|
| 3-6 months ago | 7 |
10.6%
|
|
| 6-12 months ago | 4 |
6.1%
|
|
| I don't know | 3 |
4.5%
|
|
| Many years ago/I can't remember | 29 |
43.9%
|
|
| More than one year ago | 19 |
28.8%
|